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Finding the Fourth Proportional to 343,151.58, 514,808.90 and 118,513.87

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Solution

The fourth proportional to 343,151.58, 514,808.90 and 118,513.87 is: 177,798.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,151.58 : 514,808.90 = 118,513.87 : x
  2. Step 2: Convert to fraction form
    343,151.58/514,808.90 = 118,513.87/x
  3. Step 3: Cross multiply
    343,151.58x = 514,808.90 × 118,513.87
  4. Step 4: Simplify right side
    343,151.58x = 61,011,994,456.87
  5. Step 5: Solve for x
    x = 61,011,994,456.87/343,151.58
  6. Step 6: Final answer
    x = 177,798.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.